Home / 3,872.28-5,344.58-2,381.46

Finding the Fourth Proportional to 3,872.28, 5,344.58 and 2,381.46

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Solution

The fourth proportional to 3,872.28, 5,344.58 and 2,381.46 is: 3,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.28 : 5,344.58 = 2,381.46 : x
  2. Step 2: Convert to fraction form
    3,872.28/5,344.58 = 2,381.46/x
  3. Step 3: Cross multiply
    3,872.28x = 5,344.58 × 2,381.46
  4. Step 4: Simplify right side
    3,872.28x = 12,727,903.49
  5. Step 5: Solve for x
    x = 12,727,903.49/3,872.28
  6. Step 6: Final answer
    x = 3,286.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.